framestack.h File Reference

#include "operandstack.h"
#include "attributes.h"

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Classes
struct	Frame
	Structure that will be associated with a method and holds the information necessary to run the method. More...
struct	FrameStack
	Stack of frames to store all frames created by method calling during execution of the JVM. More...

Typedefs
typedef struct Frame	Frame
typedef struct FrameStack	FrameStack

Functions
Frame *	newFrame (JavaClass *jc, method_info *method)
	A new frame is created each time a method is invoked. More...
void	freeFrame (Frame *frame)
	Free the Frame passed as parameter. More...
uint8_t	pushFrame (FrameStack **fs, Frame *frame)
	Push the Frame into the FrameStack passed as parameter by reference. More...
uint8_t	popFrame (FrameStack **fs, Frame *outPtr)
	Pop the Frame passed as parameter by reference. More...
void	freeFrameStack (FrameStack **fs)
	Free all the elements of the FrameStack passed as parameter by reference. More...

Typedef Documentation

Frame

typedef struct Frame Frame

FrameStack

typedef struct FrameStack FrameStack

Function Documentation

freeFrame()

void freeFrame

(

Frame *

frame

)

Free the Frame passed as parameter.

Parameters

Frame*

frame - pointer to Frame to be freed.

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freeFrameStack()

void freeFrameStack

(

FrameStack **

fs

)

Free all the elements of the FrameStack passed as parameter by reference.

Parameters

FrameStack**

fs - pointer to the FrameStack.

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newFrame()

Frame* newFrame	(	JavaClass *	jc,
		method_info *	method
	)

A new frame is created each time a method is invoked.

Parameters

JavaClass*	jc - pointer to the javaClass holding the method.
method_info*	method - pointer to the method

Returns

pointer to the Frame created.

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popFrame()

uint8_t popFrame	(	FrameStack **	fs,
		Frame *	outPtr
	)

Pop the Frame passed as parameter by reference.

Parameters

FrameStack**	fs - pointer to the FrameStack.
Frame*	outPtr - pointer to Frame that will be popped.

Returns

1 if the pop operation was sucessful, 0 otherwise.

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pushFrame()

uint8_t pushFrame	(	FrameStack **	fs,
		Frame *	frame
	)

Push the Frame into the FrameStack passed as parameter by reference.

Parameters

FrameStack**	fs - pointer to the FrameStack where the Frame will be pushed.
Frame*	frame - pointer to Frame to be pushed.

Returns

0 if node is NULL, in other words, if the push was not successful, any other integer value otherwise

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